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+//Network Theorem 1

+//page no-2.22

+//example 2.13

+disp("Applying KVL to mesh 1");

+disp("V+13*I1-2*I2-5*I3=20");...//mesh equation 1

+disp("Applying KVL to mesh 2");

+disp("2*I1-6*I2+I3=0");//mesh equation 2

+disp("Applying KVL to mesh 3");

+disp("V+5*I1+I2-10*I3=0");//mesh equation 3

+disp("putting I1=0 in equation 1, 2 and 3 we get"); 

+disp("V-2*I2-5*I3=20");....//equation 1

+disp("-6*I2+I3=0");....//equation 2

+disp("V+I2-10*I3=0");....//equation 3

+disp("Solving the three equations");

+A=[1 -2 -5;0 -6 1;1 1 -10];//solving the equations in matrix form

+B=[20 0 0]'

+X=inv(A)*B;

+disp(X);

+disp("V=43.7 V")
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